GAS LAW QUIZ

According to Charles Law, if you have a balloon inside a car at noon during a hot summer day, the balloon molecules inside will increase in pressure.

• TRUE

• FALSE

Nitrogen gas has occupied a volume of 500ml at a pressure of 0.971atm. What volume will the gas fill at a pressure of 1.50 atm, assuming the temperature remains constant?

• 342 ml

• 324 ml

• 242 ml

• 224 ml

Not all Gas Law problems have Kelvin (K) as the unit of temperature. They can be expressed in Celsius (°C) and Fahrenheit(°F). So, convert 123°C to K.

• 396 K

• 369 K

• 639 K

• 693 K

Based on this graph, the pressure and volume of a gas show a/an _____ relationship. 

• INVERSE

• DIRECT

In the ideal gas law, which variable represents the gas constant?

• n

• R

• T

• V

At a pressure of 5.0 atmospheres, a sample of gas occupies 40 liters. What volume will the same sample hold at 1.0 atmosphere?

• 0.005 L

• 0.13 L

• 200 L

• 8.0 L

As the volume of confined gas decreases at the constant temperature, the pressure exerted by the gas ______.

• DECREASES

• STAY THE SAME

• INCREASES

A Good example of Charles' law is when a piece of metal expands in the heat.

• TRUE

• FALSE

At constant pressure and 25°C, a sample of gas occupies 4.5 liters. At what temperature will the gas occupy 9.0 liters?

• 50 K

• 50 °C

• 596°C

• 596 K

Calculate the volume that a 0.323-mol sample of a gas will occupy at 265 K and a pressure of 0.900 atm (make sure you use the correct R value).

• 7.18 L

• 4.63 L

• 7.81 L

• 4.36 L